Portable engine



Nov. 10, 1925.

S; R. W. M. BAGER ET AL zonuniii saunas um Aug. 26. 1922 2 Sheen-Shoot i ATTORNEY.

Patented Nov. 10, 1925.

UN-[TED smug PATEN 10F Pics.

SVANTE R. w; M. BAGER. or sour niI wAuKEE, AND MITCHELL L. EYKSE, or-

MILWAUKEE, :vv'rsconsm, ASSIGNQRS WAUKEE, WISCONSIN, A CORPORATION OF WISCONSIN.

"T BUCYRUS COMPANY, OF

PORTABLE Enema- Y Application filed August 26, 1922. Serial No. 4i, 5 9i2.

To all whom it may concern: a Be it known that we, SvA'NTn R. XV. M. BAGER and MITCHEL L. 'FYKSE, citizens of United States, and residents, respectively, of

6 South Milwaukee and Milwaukee, both in the county of Milwaukee and State of -Wis cousin, have invented certain new and useful Improvements in Portable Engines; and we do hereby declare that the following is a 1 full, clear, and exact description'thereof.

I Our invention relatestounew and useful improvements in portable engines, and; has for its principal object to provide a smoke stack for such engines which can con--. '1 'veniently be lowered out of the way when passing under obstructions, such as bridges, j trolley wires, and the like.

Our invention is equally adaptable to any sort of portable engine, whether operating. on land or in the water, and whether having a horizontal or vertical boiler thereon. We have particularly in mindthat type of port able engine known as a revolving steam shovel, having a boom, dipper and. dipper handle. Such a portable engine. as this is shownin our figures and described hereinafter, but it should be understood that our invention'is not-limited to this'particular type. I

vice will be described herein as a smoke,

conveyor. p

Portable engines usually contain various different power sources, such as engines for propelling, rotating, hoisting, thrusting, and the 'like, and it is our intention to utilize for our invention any or none of these power sources. I p v For a great many years'portableengines have been built .withv the smoke conveyor hinged, so as to lower it before passing, undervoverhead obstructions. It is obvious that the hinge shouldbe placed as'low as possible, so that the machine can'passflunder the lowest po sible obstructions, and for this purpose alone.

Considerable trouble has always been met in fi g the smoke con ey rs offp t'abl The boiler of a portable enginefis usually engines, due 't'o theforce withgwhich they fall when 'lowered,fresulting in denti'ng 'o'r sou'rn MIL- -damaging either tliesmoke conveyor or, the part of the machine against which itstrikes.

and to provide a more convenient means for t is' our "object to eliminate this trouble,

lowering' the smoke conveyor thanv any hltlli'lfdln use. 1' i In the particular exemplification shown and describedhereiny we use'the hoistingjj engine, 7 offset by the-weight of the sesa e ingdipper, thus rotatingthe rear endof the dipper handle, and pulling upon the hinged I smoke-conveyor, by means of a chain connecting said handle to said smoke-conveyor. Other advantages of the simple design of our smoke conveyor, and its lowering and raising means, will naturally suggest them I selves as'the description progresses.

With these general objectsin view, the invention resides in. the novel features of construction, combination and arrangement of parts which will be hereinafter more particularlyldescribed and claimed, and shown in the accompanying'drawings, wherein:

Figure l is a side'view of a portable en- "gine of'the steam shovel type, with the smoke conveyor partially lowered by means of our invention, v

chine, with the smoke conveyor in the: same in place as hereinafter described.

Figure 2 is a side-view -of the same ma "position as in Figure 1, but with the, strut Fig 2;uref3 is a side view of the same inaj' chine, with the smoke conveyor entirely loWeredjby means of our invention.

portable engine 1 contains a steam boiler, the upper, part of the "smoke box 501 which i Referring morefparticularly to the draw- I 'ings, it will be-seen that 1 represents a port I able engine of'the steam shovel type, carry" is shown. The smoke fconveyorcon'sists of a small cylindrical portion 6 and a truncated conical portion 7. lThe'smoke conveyor is fastened to the top of'thesmoke box 5, at

the rear side'thereof, by-hinge 8. At the opposite side of the base of the smokecon 'veyor is a fastening 9,.from which extends a chain 10, to a proper fasteningl1-on thedipper'handle 3.. :The'rotation of'thedipper handle 3 is controlled by the hoist-rope 12,

actuated by a hoist engine not shown. The translation of the dipper handle 3 is effected by racks 17 on the under side thereof, and by pinions 18 mounted onthe boom 2, engaging said racks, and rotated by the thrusting engine 13..

There is provided a strut 14, hinged (preferably detachably) at 15, at the opposite edge of the top of the smoke box 5 from the hinge 8. The smoke conveyorin its normal position, is shown by broken lines in Figure 1.

The smoke conveyor could be broken in any otherhorizontal plane'than that shown, and'the hinge 8 appropriately applied, such as at 16. When not in use, the chain 10 can be'detached at 9 and 11, and stored away.

To lower the smoke conveyor, the chain 1.0 is attached by its respective ends at 9 and 11, so positioning the dipper handle .3, by means of the hoist rope 12 and the boom engine 1.3, as to take the slackout of the chain 10. The smoke conveyor is pushed to the rear, until its center of gravity is rearward of the hinge 8, as shown in Figure 1. The smoke conveyor is then lowered, by taking in the hoist rope 12. The strut 14 is raised, about the hinge 15 as a pivot, until the chain 10 bears upon it, as shown in Figure 2. The hoist rope .12 is further taken in until the smoke conveyor is completely lowered, as shown in Figure 3. The strut and, chain can then be removed and the boom lowered for passing beneath the obstruction. The object of the strut 14 is to provide the necessary direction of pull on the fastening 9, when the smoke conveyor is in itslowest position.

To raise the smoke conveyor the above mentioned operations are reversed, and the rope 12 is payed out, the motive power be ing furnishedby the kinetic energy of the dipper, stored up by its previous hoisting.

From the foregoing description, taken in connection with the accompanying drawings, it will be obvious that many changes may be made in the form and proportions of the different parts .of the invention and in the manner of assembling and disassembling the same, without departing from the principal features thereof as outlined in the appended claims.

\Ve claim:

1. In a portable engine, the combination of a boiler {asmoke box above said boiler; a

smoke coi-iveyor; a ghfnge connecting saidv SHIDkGr COHVGyGI to one side of saidsmoke, box; power-actuated means for. raising and lowering said smoke-conveyor about said as sm lt-she...

conveyor above hinge, said powenactuated means including a flexible-member; and a pivotedstrut 95 changing the direction of pull. in. said flexi, blemember. e

a para engineoneip-r mem v flatwarev connecting said smoke-conveyor to one side of said smoke-box; a flexible COIIIIEGtlOIl between the other side of said smoke conveyor and one prime mover of said portable engine, and a pivoted strut, on the free end of which can rest said flexible connection; all for the purpose of raising and lowering said smoke conveyor about said hinge.

3. In a portable engine, the combination of a boiler; a smoke-box above said boiler; a smoke-conveyor above said smoke-box, hinged at one side of said smoke box; a boom pivoted at one end of said portable engine; a dipper handle mounted on said boom for rotation and translation; means for rotating and means for. translating said handle; and a flexible connection between said smoke-conveyor and said handle, for

the purpose of raising and lowering saidsmoke-conveyon 4. In a portable engine, the combination of a boiler; a smoke-box above said boiler;

a smoke-conveyor above said smoke-box,

hinged at one side of said smoke-box; a*

boom pivoted at one end of said portable engine; a dipper handle mounted on said boom for rotation and translation; means for rotating and means for translating said handle; a flexible connection between said smoke-conveyor and said handle; and av pivoted strut, on the free end of which can rest said flexible connection; all for the purpose ofraising and lowering said smokeconveyor.

In a portable engine, having at least one prime-mover, the combination of a boil er; a smoke-box above said.boiler;.a smokeconveyor above said smoke-box, hinged at one side of said smoke-box; a connection beboom for rotation and translation; means for rotating and means for translating said handle; and a connection between said smoke-conveyor and said handle, for the purpose of raising and lowering said smoke conveyor.

7. In a portable engine, the combination of .aboiler; a smokesbox above said boiler; 7 a smokeonvey r b e sa en -s et h hinged at one side of said srriokebox; a,

bogmivoted at one end or said pdrtable engine; a dipper handle mounted on said;

fer me e -env n an l tion; man

ating, stam ns ter: en-

'handle; a connection between said smokeconveyor and said handle; and a pivoted strut, on the free end of which can rest said connection; all for the purpose of raising and lowering said smoke-conveyor.

8. In a portable engine, having at least one prime-mover, the combination of a boiler; a smoke-box above said boiler; a smokeconveyor; a hinge connecting said smokeconveyor to one side of said smoke-box; and means for utilizing said prime mover to raise and lower said smoke-conveyor about said hinge, said means including a flexible member, and a pivoted strut for changing the direction of pull in said flexible member.

9. A pivoted strut, associated with the means for raising and lowering the smokeconveyor of a portable engine, and so disposed as to change the direction of application of the force which performs the raising and resists the lowering.

10. In a portable engine, the combination of a boiler; a smoke-box above saidboiler; a smoke-conveyor pivotally connected to said smoke-box and adapted to swing through substantially 180 about its pivot; and power-actuated means for raising and lowering said smoke-conveyor.

SVANTE R. W. M. BAGER. MITCHELL L. FYKSE. 

